Sometimes it is interesting to simulate errors in the database to test certain cases, with the following steps we can simulate a failure in the mongodb database locally.
We use a mongodb running in docker.
Steps:

Maven has to main plugins to run tests:

• maven-surefire-plugin: It is designed to run unit tests, it will run tests inside classes with “Test” in their class name.
• maven-failsafe-plugin: It is designed to run integration tests, it will run tests inside classes with “IT” in their class name.

Here are some interesting utilities for working with dates in java:

We will show two ways to deserialize:

• Deserializing the whole class.
• Deserializing by type.

Deserialize whole class:

Really good video to see how to use Wiremock in the integration tests using Junit5.

We are going to show several interesting commands when working with Kubernetes: